TY  - JOUR
AU  - Achterberg, A.
AU  - Amoroso, S.
AU  - Caron, S.
AU  - Hendriks, L.
AU  - Ruiz de Austri, R.
AU  - Weniger, C.
PY  - 2015
DA  - 2015//
TI  - A description of the Galactic Center excess in the Minimal Supersymmetric Standard Model
T2  - J. Cosmol. Astropart. Phys.
JO  - Journal of Cosmology and Astroparticle Physics
SP  - 006
EP  - 27pp
VL  - 08
IS  - 8
PB  - Iop Publishing Ltd
KW  - dark matter theory
KW  - dark matter simulations
KW  - dark matter experiments
AB  - Observations with the Fermi Large Area Telescope (LAT) indicate an excess in gamma rays originating from the center of our Galaxy. A possible explanation for this excess is the annihilation of Dark Matter particles. We have investigated the annihilation of neutralinos as Dark Matter candidates within the phenomenological Minimal Supersymmetric Standard Model (pMSSM). An iterative particle filter approach was used to search for solutions within the pMSSM. We found solutions that are consistent with astroparticle physics and collider experiments, and provide a fit to the energy spectrum of the excess. The neutralino is a Bino/Higgsino or Bino/Wino/Higgsino mixture with a mass in the range 84-92 GeV or 87-97 GeV annihilating into W bosons. A third solutions is found for a neutralino of mass 174-187 GeV annihilating into top quarks. The best solutions yield a Dark Matter relic density 0.06 < Omega h(2) < 0.13. These pMSSM solutions make clear forecasts for LHC, direct and indirect DM detection experiments. If the pMSSM explanation of the excess seen by Fermi-LAT is correct, a DM signal might be discovered soon.
SN  - 1475-7516
UR  - http://arxiv.org/abs/1502.05703
UR  - https://doi.org/10.1088/1475-7516/2015/08/006
DO  - 10.1088/1475-7516/2015/08/006
LA  - English
N1  - WOS:000365046600006
ID  - Achterberg_etal2015
ER  -